deps: backport 7b24219346 from v8 upstream

Original: Fix lookup iterator checks in GetRealNamedProperty* methods BUG=v8:4143 R=verwaest@chromium.org LOG=n Review URL: https://codereview.chromium.org/1161553004 Cr-Commit-Position: refs/heads/master@{nodejs#28616} PR-URL: nodejs#1805 Reviewed-By: Domenic Denicola <domenic@domenicdenicola.com>
indutny · May 27, 2015 · 70716fd · 70716fd
1 parent 853a2b3
commit 70716fd
Showing 1 changed file with 5 additions and 6 deletions.
diff --git a/deps/v8/src/api.cc b/deps/v8/src/api.cc
@@ -4029,10 +4029,10 @@ MaybeLocal<Value> v8::Object::GetRealNamedPropertyInPrototypeChain(
   auto proto = i::PrototypeIterator::GetCurrent(iter);
   i::LookupIterator it(self, key_obj, i::Handle<i::JSReceiver>::cast(proto),
                        i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR);
-  if (!it.IsFound()) return MaybeLocal<Value>();
   Local<Value> result;
   has_pending_exception = !ToLocal<Value>(i::Object::GetProperty(&it), &result);
   RETURN_ON_FAILED_EXECUTION(Value);
+  if (!it.IsFound()) return MaybeLocal<Value>();
   RETURN_ESCAPED(result);
 }
 
@@ -4058,9 +4058,9 @@ v8::Object::GetRealNamedPropertyAttributesInPrototypeChain(
   auto proto = i::PrototypeIterator::GetCurrent(iter);
   i::LookupIterator it(self, key_obj, i::Handle<i::JSReceiver>::cast(proto),
                        i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR);
-  if (!it.IsFound()) return Nothing<PropertyAttribute>();
   auto result = i::JSReceiver::GetPropertyAttributes(&it);
   RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute);
+  if (!it.IsFound()) return Nothing<PropertyAttribute>();
   if (result.FromJust() == ABSENT) {
     return Just(static_cast<PropertyAttribute>(NONE));
   }
@@ -4078,16 +4078,15 @@ v8::Object::GetRealNamedPropertyAttributesInPrototypeChain(Handle<String> key) {
 
 MaybeLocal<Value> v8::Object::GetRealNamedProperty(Local<Context> context,
                                                    Local<Name> key) {
-  PREPARE_FOR_EXECUTION(
-      context, "v8::Object::GetRealNamedPropertyInPrototypeChain()", Value);
+  PREPARE_FOR_EXECUTION(context, "v8::Object::GetRealNamedProperty()", Value);
   auto self = Utils::OpenHandle(this);
   auto key_obj = Utils::OpenHandle(*key);
   i::LookupIterator it(self, key_obj,
                        i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR);
-  if (!it.IsFound()) return MaybeLocal<Value>();
   Local<Value> result;
   has_pending_exception = !ToLocal<Value>(i::Object::GetProperty(&it), &result);
   RETURN_ON_FAILED_EXECUTION(Value);
+  if (!it.IsFound()) return MaybeLocal<Value>();
   RETURN_ESCAPED(result);
 }
 
@@ -4107,9 +4106,9 @@ Maybe<PropertyAttribute> v8::Object::GetRealNamedPropertyAttributes(
   auto key_obj = Utils::OpenHandle(*key);
   i::LookupIterator it(self, key_obj,
                        i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR);
-  if (!it.IsFound()) return Nothing<PropertyAttribute>();
   auto result = i::JSReceiver::GetPropertyAttributes(&it);
   RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute);
+  if (!it.IsFound()) return Nothing<PropertyAttribute>();
   if (result.FromJust() == ABSENT) {
     return Just(static_cast<PropertyAttribute>(NONE));
   }